Using tack welders for silver?

Good Morning :slight_smile:

I have been using a tack welder at work and loved it! But I wanted
to know if it could be used for silver (or for tacking gold to

The tips of the tweesers and pliers used for holding pieces to be
tacked have silver soldered onto them because of its great
conductivity - so Iā€™m guessing there are going to be issues.

Thank you!